Javascript get parent element from child

.parent( [selector ] )Returns: jQuery

Description: Get the parent of each element in the current set of matched elements, optionally filtered by a selector.

• version added: 1.0.parent( [selector ] )

  • selector

    A string containing a selector expression to match elements against.

Given a jQuery object that represents a set of DOM elements, the parent() method traverses to the immediate parent of each of these elements in the DOM tree and constructs a new jQuery object from the matching elements.

This method is similar to .parents(), except .parent() only travels a single level up the DOM tree. Also, $( "html" ).parent() method returns a set containing document whereas $( "html" ).parents() returns an empty set.

The method optionally accepts a selector expression of the same type that we can pass to the $() function. If the selector is supplied, the elements will be filtered by testing whether they match it.

Consider a page with a basic nested list on it:

  <li class="item-i">I</li>
      <li class="item-a">A</li>
          <li class="item-1">1</li>
          <li class="item-2">2</li>
          <li class="item-3">3</li>
      <li class="item-c">C</li>
  <li class="item-iii">III</li>

If we begin at item A, we can find its parents:

$( "li.item-a" ).parent().css( "background-color", "red" );

The result of this call is a red background for the level-2 list. Since we do not supply a selector expression, the parent element is unequivocally included as part of the object. If we had supplied one, the element would be tested for a match before it was included.

  <title>parent demo</title>
  <script src="https://code.jquery.com/jquery-3.5.0.js"></script>
$( "*", document.body ).each(function() {
  var parentTag = $( this ).parent().get( 0 ).tagName;
  $( this ).prepend( document.createTextNode( parentTag + " > " ) );

  <title>parent demo</title>
  <script src="https://code.jquery.com/jquery-3.5.0.js"></script>
<div class="selected"><p>Hello Again</p></div>
$( "p" ).parent( ".selected" ).css( "background", "yellow" );